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Q4 The velocity of a particle moving along the x-axis is given, for0, by (50r - 2.0r) m/s, where is in s. What is acceleration of the particle (after0) when it achieves its maximum displacement in the positivex-direction? A) -1.0x102 m/s2 B) -1.9x102 m/s2 C) +1.9x102 m/s2 D) +1.0x102 m/s2 E) -1.5x102 m/s2
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